The present study focuses on the preparation of silver/copper bimetallic hybrid nanoparticles by green method from precursor solutions of silver nitrate & copper nitrate and the locally available citrus fruit (lemon) peel extract which behaves as the stabilizing and reducing agent. Initially, the formation of hybrid nanoparticles was noticed in the reaction mixture by colour change. | Cite this paper Vietnam J. Chem. 2023 61 2 220-226 Research article DOI Eco-friendly green synthesis of Ag@Cu bimetallic nanoparticles Evaluation of their structural morphological and electrochemical characterizations Shaik Nagul Shareef1 Kalli Sai Bhavani2 Tummala Anusha3 Pallapati Priyanka4 M. Subba Rao5 1 Research Scholar Department of Chemistry Acharya Nagarjuna University Andhra Pradesh India 2 Lecturer in Department of Chemistry Andhra Loyola College Andhra Pradesh India 3 Department of Basic Science and Humanities Chemistry Narasaraopeta Engineering College Narasaraopeta Andhra Pradesh India 4 Lecturer in Department of Chemistry Andhra Loyola College Andhra Pradesh India 5 Associate Professor Department of Chemistry Acharya Nagarjuna University Andhra Pradesh India Submitted July 6 2022 Revised September 5 2022 Accepted November 22 2022 Abstract The present study focuses on the preparation of silver copper bimetallic hybrid nanoparticles by green method from precursor solutions of silver nitrate amp copper nitrate and the locally available citrus fruit lemon peel extract which behaves as the stabilizing and reducing agent. Initially the formation of hybrid nanoparticles was noticed in the reaction mixture by colour change. Here UV-Visible spectroscopy is useful to examine the optical measurements of the prepared nanoparticles and it exhibited the maximum absorption wavelength for lemon peel extract at 440 nm. Later the functional groups present in the synthesized nanoparticles are investigated by FT-IR spectroscopy. In addition the pure and crystalline nature of developed nanoparticles was evaluated by XRD measurements. The spherical shape of produced bimetallic hybrid nanoparticles was observed by SEM analysis. The elemental composition of the synthesized nanoparticles was investigated by EDX analysis. Furthermore electrochemical evaluation of synthesized nanoparticles by usage of CV cyclic voltammetry exhibited that Ag@Cu bimetallic
